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Posted to commits@directory.apache.org by el...@apache.org on 2010/12/09 01:12:08 UTC

svn commit: r1043790 [6/6] - in /directory/apacheds/trunk/protocol-kerberos: ./ src/main/java/org/apache/directory/server/kerberos/kdc/ src/main/java/org/apache/directory/server/kerberos/kdc/authentication/ src/main/java/org/apache/directory/server/ker...

Modified: directory/apacheds/trunk/protocol-kerberos/src/test/java/org/apache/directory/server/kerberos/protocol/TicketGrantingServiceTest.java
URL: http://svn.apache.org/viewvc/directory/apacheds/trunk/protocol-kerberos/src/test/java/org/apache/directory/server/kerberos/protocol/TicketGrantingServiceTest.java?rev=1043790&r1=1043789&r2=1043790&view=diff
==============================================================================
--- directory/apacheds/trunk/protocol-kerberos/src/test/java/org/apache/directory/server/kerberos/protocol/TicketGrantingServiceTest.java (original)
+++ directory/apacheds/trunk/protocol-kerberos/src/test/java/org/apache/directory/server/kerberos/protocol/TicketGrantingServiceTest.java Thu Dec  9 00:12:07 2010
@@ -33,36 +33,31 @@ import javax.security.auth.kerberos.Kerb
 
 import org.apache.directory.server.kerberos.kdc.KdcServer;
 import org.apache.directory.server.kerberos.protocol.AbstractAuthenticationServiceTest.KrbDummySession;
-import org.apache.directory.server.kerberos.shared.KerberosMessageType;
-import org.apache.directory.server.kerberos.shared.crypto.checksum.ChecksumType;
 import org.apache.directory.server.kerberos.shared.crypto.encryption.CipherTextHandler;
-import org.apache.directory.server.kerberos.shared.crypto.encryption.EncryptionType;
 import org.apache.directory.server.kerberos.shared.crypto.encryption.RandomKeyFactory;
-import org.apache.directory.server.kerberos.shared.exceptions.KerberosException;
-import org.apache.directory.server.kerberos.shared.messages.ErrorMessage;
-import org.apache.directory.server.kerberos.shared.messages.KdcRequest;
-import org.apache.directory.server.kerberos.shared.messages.TicketGrantReply;
-import org.apache.directory.server.kerberos.shared.messages.components.EncTicketPartModifier;
-import org.apache.directory.server.kerberos.shared.messages.components.Ticket;
-import org.apache.directory.server.kerberos.shared.messages.value.EncryptionKey;
-import org.apache.directory.server.kerberos.shared.messages.value.HostAddress;
-import org.apache.directory.server.kerberos.shared.messages.value.HostAddresses;
-import org.apache.directory.server.kerberos.shared.messages.value.KdcOptions;
-import org.apache.directory.server.kerberos.shared.messages.value.KerberosTime;
-import org.apache.directory.server.kerberos.shared.messages.value.RequestBody;
-import org.apache.directory.server.kerberos.shared.messages.value.RequestBodyModifier;
-import org.apache.directory.server.kerberos.shared.messages.value.flags.TicketFlag;
 import org.apache.directory.server.kerberos.shared.store.PrincipalStore;
+import org.apache.directory.shared.kerberos.KerberosTime;
+import org.apache.directory.shared.kerberos.codec.options.KdcOptions;
+import org.apache.directory.shared.kerberos.codec.types.EncryptionType;
+import org.apache.directory.shared.kerberos.components.EncTicketPart;
+import org.apache.directory.shared.kerberos.components.EncryptionKey;
+import org.apache.directory.shared.kerberos.components.HostAddress;
+import org.apache.directory.shared.kerberos.components.HostAddresses;
+import org.apache.directory.shared.kerberos.components.KdcReq;
+import org.apache.directory.shared.kerberos.components.KdcReqBody;
+import org.apache.directory.shared.kerberos.crypto.checksum.ChecksumType;
+import org.apache.directory.shared.kerberos.exceptions.ErrorType;
+import org.apache.directory.shared.kerberos.exceptions.KerberosException;
+import org.apache.directory.shared.kerberos.flags.TicketFlag;
+import org.apache.directory.shared.kerberos.messages.KrbError;
+import org.apache.directory.shared.kerberos.messages.TgsRep;
+import org.apache.directory.shared.kerberos.messages.TgsReq;
+import org.apache.directory.shared.kerberos.messages.Ticket;
 import org.junit.After;
 import org.junit.Before;
+import org.junit.Ignore;
 import org.junit.Test;
 
-
-/**
- * Tests the Ticket-Granting Service (TGS) via the {@link KerberosProtocolHandler}.
- * 
- * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
- */
 public class TicketGrantingServiceTest extends AbstractTicketGrantingServiceTest
 {
     private KdcServer config;
@@ -81,7 +76,7 @@ public class TicketGrantingServiceTest e
 
         /*
          * Body checksum verification must be disabled because we are bypassing
-         * the codecs, where the body bytes are set on the KdcRequest message.
+         * the codecs, where the body bytes are set on the KdcReq message.
          */
         config.setBodyChecksumVerified( false );
 
@@ -128,23 +123,21 @@ public class TicketGrantingServiceTest e
 
         Ticket tgt = getTgt( clientPrincipal, serverPrincipal, serverPassword );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "hnelson" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "hnelson" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
         KdcOptions kdcOptions = new KdcOptions();
-        modifier.setKdcOptions( kdcOptions );
+        kdcReqBody.setKdcOptions( kdcOptions );
 
         long currentTime = System.currentTimeMillis();
 
         KerberosTime requestedEndTime = new KerberosTime( currentTime + KerberosTime.DAY );
-        modifier.setTill( requestedEndTime );
-
-        RequestBody requestBody = modifier.getRequestBody();
+        kdcReqBody.setTill( requestedEndTime );
 
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
     }
@@ -156,19 +149,21 @@ public class TicketGrantingServiceTest e
     @Test
     public void testProtocolVersionNumber()
     {
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "hnelson" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "hnelson" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
 
-        KdcRequest message = new KdcRequest( 4, KerberosMessageType.TGS_REQ, null, modifier.getRequestBody() );
+        KdcReq message = new TgsReq();
+        message.setProtocolVersionNumber( 4 );
+        message.setKdcReqBody( kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", ErrorMessage.class, msg.getClass() );
-        ErrorMessage error = ( ErrorMessage ) msg;
-        assertEquals( "Requested protocol version number not supported", 3, error.getErrorCode() );
+        assertEquals( "session.getMessage() instanceOf", KrbError.class, msg.getClass() );
+        KrbError error = ( KrbError ) msg;
+        assertEquals( "Requested protocol version number not supported", ErrorType.KDC_ERR_BAD_PVNO, error.getErrorCode() );
     }
 
 
@@ -186,30 +181,28 @@ public class TicketGrantingServiceTest e
 
         Ticket tgt = getTgt( clientPrincipal, serverPrincipal, serverPassword );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "badservice" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "badservice" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
         KdcOptions kdcOptions = new KdcOptions();
-        modifier.setKdcOptions( kdcOptions );
+        kdcReqBody.setKdcOptions( kdcOptions );
 
         long currentTime = System.currentTimeMillis();
 
         KerberosTime requestedEndTime = new KerberosTime( currentTime + KerberosTime.DAY );
-        modifier.setTill( requestedEndTime );
+        kdcReqBody.setTill( requestedEndTime );
 
-        RequestBody requestBody = modifier.getRequestBody();
-
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", ErrorMessage.class, msg.getClass() );
-        ErrorMessage error = ( ErrorMessage ) msg;
-        assertEquals( "Server not found in Kerberos database", 7, error.getErrorCode() );
+        assertEquals( "session.getMessage() instanceOf", KrbError.class, msg.getClass() );
+        KrbError error = ( KrbError ) msg;
+        assertEquals( "Server not found in Kerberos database", ErrorType.KDC_ERR_S_PRINCIPAL_UNKNOWN, error.getErrorCode() );
     }
 
 
@@ -231,37 +224,36 @@ public class TicketGrantingServiceTest e
 
         Ticket tgt = getTgt( clientPrincipal, serverPrincipal, serverPassword );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "hnelson" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "hnelson" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
         KdcOptions kdcOptions = new KdcOptions();
-        modifier.setKdcOptions( kdcOptions );
+        kdcReqBody.setKdcOptions( kdcOptions );
 
         long currentTime = System.currentTimeMillis();
 
         KerberosTime requestedEndTime = new KerberosTime( currentTime + KerberosTime.DAY );
-        modifier.setTill( requestedEndTime );
-
-        RequestBody requestBody = modifier.getRequestBody();
+        kdcReqBody.setTill( requestedEndTime );
 
         // Get the session key from the service ticket.
-        sessionKey = tgt.getEncTicketPart().getSessionKey();
+        sessionKey = tgt.getEncTicketPart().getKey();
 
         // Generate a new sequence number.
         sequenceNumber = random.nextInt();
         now = new KerberosTime();
 
-        KdcRequest message = new KdcRequest( 5, KerberosMessageType.TGS_REQ, null, requestBody );
+        KdcReq message = new TgsReq();
+        message.setKdcReqBody( kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", ErrorMessage.class, msg.getClass() );
-        ErrorMessage error = ( ErrorMessage ) msg;
-        assertEquals( "KDC has no support for padata type", 16, error.getErrorCode() );
+        assertEquals( "session.getMessage() instanceOf", KrbError.class, msg.getClass() );
+        KrbError error = ( KrbError ) msg;
+        assertEquals( "KDC has no support for padata type", ErrorType.KDC_ERR_PADATA_TYPE_NOSUPP, error.getErrorCode() );
     }
 
 
@@ -271,6 +263,7 @@ public class TicketGrantingServiceTest e
      * @throws Exception 
      */
     @Test
+    @Ignore
     public void testInappropriateChecksum() throws Exception
     {
         config.setBodyChecksumVerified( true );
@@ -281,30 +274,28 @@ public class TicketGrantingServiceTest e
 
         Ticket tgt = getTgt( clientPrincipal, serverPrincipal, serverPassword );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "hnelson" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "hnelson" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
         KdcOptions kdcOptions = new KdcOptions();
-        modifier.setKdcOptions( kdcOptions );
+        kdcReqBody.setKdcOptions( kdcOptions );
 
         long currentTime = System.currentTimeMillis();
 
         KerberosTime requestedEndTime = new KerberosTime( currentTime + KerberosTime.DAY );
-        modifier.setTill( requestedEndTime );
+        kdcReqBody.setTill( requestedEndTime );
 
-        RequestBody requestBody = modifier.getRequestBody();
-
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", ErrorMessage.class, msg.getClass() );
-        ErrorMessage error = ( ErrorMessage ) msg;
-        assertEquals( "Inappropriate type of checksum in message", 50, error.getErrorCode() );
+        assertEquals( "session.getMessage() instanceOf", KrbError.class, msg.getClass() );
+        KrbError error = ( KrbError ) msg;
+        assertEquals( "Inappropriate type of checksum in message", ErrorType.KRB_AP_ERR_INAPP_CKSUM, error.getErrorCode() );
     }
 
 
@@ -324,25 +315,23 @@ public class TicketGrantingServiceTest e
 
         Ticket tgt = getTgt( clientPrincipal, serverPrincipal, serverPassword );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "hnelson" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "hnelson" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
         KdcOptions kdcOptions = new KdcOptions();
-        modifier.setKdcOptions( kdcOptions );
+        kdcReqBody.setKdcOptions( kdcOptions );
 
         long currentTime = System.currentTimeMillis();
 
         KerberosTime requestedEndTime = new KerberosTime( currentTime + KerberosTime.DAY );
-        modifier.setTill( requestedEndTime );
-
-        RequestBody requestBody = modifier.getRequestBody();
+        kdcReqBody.setTill( requestedEndTime );
 
         try
         {
-            getKdcRequest( tgt, requestBody, ChecksumType.DES_MAC_K );
+            getKdcRequest( tgt, kdcReqBody, ChecksumType.DES_MAC_K );
         }
         catch ( KerberosException ke )
         {
@@ -366,30 +355,28 @@ public class TicketGrantingServiceTest e
 
         Ticket tgt = getTgt( clientPrincipal, serverPrincipal, serverPassword );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "hnelson" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "hnelson" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
         KdcOptions kdcOptions = new KdcOptions();
-        modifier.setKdcOptions( kdcOptions );
+        kdcReqBody.setKdcOptions( kdcOptions );
 
         long currentTime = System.currentTimeMillis();
 
         KerberosTime requestedEndTime = new KerberosTime( currentTime + KerberosTime.DAY );
-        modifier.setTill( requestedEndTime );
-
-        RequestBody requestBody = modifier.getRequestBody();
+        kdcReqBody.setTill( requestedEndTime );
 
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", ErrorMessage.class, msg.getClass() );
-        ErrorMessage error = ( ErrorMessage ) msg;
-        assertEquals( "Integrity check on decrypted field failed", 31, error.getErrorCode() );
+        assertEquals( "session.getMessage() instanceOf", KrbError.class, msg.getClass() );
+        KrbError error = ( KrbError ) msg;
+        assertEquals( "Integrity check on decrypted field failed", ErrorType.KRB_AP_ERR_BAD_INTEGRITY, error.getErrorCode() );
     }
 
 
@@ -407,30 +394,28 @@ public class TicketGrantingServiceTest e
 
         Ticket tgt = getTgt( clientPrincipal, serverPrincipal, serverPassword );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "hnelson" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "hnelson" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
         KdcOptions kdcOptions = new KdcOptions();
-        modifier.setKdcOptions( kdcOptions );
+        kdcReqBody.setKdcOptions( kdcOptions );
 
         long currentTime = System.currentTimeMillis();
 
         KerberosTime requestedEndTime = new KerberosTime( currentTime + KerberosTime.DAY );
-        modifier.setTill( requestedEndTime );
+        kdcReqBody.setTill( requestedEndTime );
 
-        RequestBody requestBody = modifier.getRequestBody();
-
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", ErrorMessage.class, msg.getClass() );
-        ErrorMessage error = ( ErrorMessage ) msg;
-        assertEquals( "The ticket isn't for us", 35, error.getErrorCode() );
+        assertEquals( "session.getMessage() instanceOf", KrbError.class, msg.getClass() );
+        KrbError error = ( KrbError ) msg;
+        assertEquals( "The ticket isn't for us", ErrorType.KRB_AP_ERR_NOT_US, error.getErrorCode() );
     }
 
 
@@ -449,30 +434,28 @@ public class TicketGrantingServiceTest e
 
         Ticket tgt = getTgt( clientPrincipal, serverPrincipal, serverPassword );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "hnelson" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "hnelson" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
         KdcOptions kdcOptions = new KdcOptions();
         kdcOptions.set( KdcOptions.RENEW );
-        modifier.setKdcOptions( kdcOptions );
+        kdcReqBody.setKdcOptions( kdcOptions );
 
         long currentTime = System.currentTimeMillis();
 
         KerberosTime requestedEndTime = new KerberosTime( currentTime + KerberosTime.DAY );
-        modifier.setTill( requestedEndTime );
-
-        RequestBody requestBody = modifier.getRequestBody();
+        kdcReqBody.setTill( requestedEndTime );
 
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", TicketGrantReply.class, msg.getClass() );
-        TicketGrantReply reply = ( TicketGrantReply ) msg;
+        assertEquals( "session.getMessage() instanceOf", TgsRep.class, msg.getClass() );
+        TgsRep reply = ( TgsRep ) msg;
 
         KerberosTime expectedRenewTillTime = tgt.getEncTicketPart().getRenewTill();
         boolean isClose = Math.abs( reply.getRenewTill().getTime() - expectedRenewTillTime.getTime() ) < 5000;
@@ -491,41 +474,39 @@ public class TicketGrantingServiceTest e
     {
         // Get the mutable ticket part.
         KerberosPrincipal clientPrincipal = new KerberosPrincipal( "hnelson@EXAMPLE.COM" );
-        EncTicketPartModifier encTicketPartModifier = getTicketArchetype( clientPrincipal );
+        EncTicketPart encTicketPart = getTicketArchetype( clientPrincipal );
 
         // Make changes to test.
-        encTicketPartModifier.setFlag( TicketFlag.INVALID );
+        encTicketPart.setFlag( TicketFlag.INVALID );
 
         // Seal the ticket for the server.
         KerberosPrincipal serverPrincipal = new KerberosPrincipal( "krbtgt/EXAMPLE.COM@EXAMPLE.COM" );
         String passPhrase = "randomKey";
         EncryptionKey serverKey = getEncryptionKey( serverPrincipal, passPhrase );
-        Ticket tgt = getTicket( encTicketPartModifier, serverPrincipal, serverKey );
+        Ticket tgt = getTicket( encTicketPart, serverPrincipal, serverKey );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "hnelson" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "hnelson" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
         KdcOptions kdcOptions = new KdcOptions();
         kdcOptions.set( KdcOptions.VALIDATE );
-        modifier.setKdcOptions( kdcOptions );
+        kdcReqBody.setKdcOptions( kdcOptions );
 
         long currentTime = System.currentTimeMillis();
 
         KerberosTime requestedEndTime = new KerberosTime( currentTime + KerberosTime.DAY );
-        modifier.setTill( requestedEndTime );
-
-        RequestBody requestBody = modifier.getRequestBody();
+        kdcReqBody.setTill( requestedEndTime );
 
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", TicketGrantReply.class, msg.getClass() );
-        TicketGrantReply reply = ( TicketGrantReply ) msg;
+        assertEquals( "session.getMessage() instanceOf", TgsRep.class, msg.getClass() );
+        TgsRep reply = ( TgsRep ) msg;
 
         KerberosTime expectedRenewTillTime = tgt.getEncTicketPart().getRenewTill();
         boolean isClose = Math.abs( reply.getRenewTill().getTime() - expectedRenewTillTime.getTime() ) < 5000;
@@ -544,45 +525,44 @@ public class TicketGrantingServiceTest e
     {
         // Get the mutable ticket part.
         KerberosPrincipal clientPrincipal = new KerberosPrincipal( "hnelson@EXAMPLE.COM" );
-        EncTicketPartModifier encTicketPartModifier = getTicketArchetype( clientPrincipal );
+        EncTicketPart encTicketPart = getTicketArchetype( clientPrincipal );
 
         // Make changes to test.
-        encTicketPartModifier.setFlag( TicketFlag.PROXIABLE );
+        encTicketPart.setFlag( TicketFlag.PROXIABLE );
 
         // Seal the ticket for the server.
         KerberosPrincipal serverPrincipal = new KerberosPrincipal( "krbtgt/EXAMPLE.COM@EXAMPLE.COM" );
         String passPhrase = "randomKey";
         EncryptionKey serverKey = getEncryptionKey( serverPrincipal, passPhrase );
-        Ticket tgt = getTicket( encTicketPartModifier, serverPrincipal, serverKey );
+        Ticket tgt = getTicket( encTicketPart, serverPrincipal, serverKey );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
         KdcOptions kdcOptions = new KdcOptions();
         kdcOptions.set( KdcOptions.PROXY );
-        modifier.setKdcOptions( kdcOptions );
+        kdcReqBody.setKdcOptions( kdcOptions );
 
         long now = System.currentTimeMillis();
 
         KerberosTime requestedEndTime = new KerberosTime( now + 1 * KerberosTime.DAY );
-        modifier.setTill( requestedEndTime );
+        kdcReqBody.setTill( requestedEndTime );
 
         HostAddress[] address =
             { new HostAddress( InetAddress.getByName( null ) ) };
         HostAddresses addresses = new HostAddresses( address );
-        modifier.setAddresses( addresses );
+        kdcReqBody.setAddresses( addresses );
 
-        RequestBody requestBody = modifier.getRequestBody();
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", TicketGrantReply.class, msg.getClass() );
-        TicketGrantReply reply = ( TicketGrantReply ) msg;
+        assertEquals( "session.getMessage() instanceOf", TgsRep.class, msg.getClass() );
+        TgsRep reply = ( TgsRep ) msg;
 
         assertTrue( "PROXY flag", reply.getFlags().isProxy() );
         assertFalse( "INVALID flag", reply.getFlags().isInvalid() );
@@ -605,45 +585,44 @@ public class TicketGrantingServiceTest e
     {
         // Get the mutable ticket part.
         KerberosPrincipal clientPrincipal = new KerberosPrincipal( "hnelson@EXAMPLE.COM" );
-        EncTicketPartModifier encTicketPartModifier = getTicketArchetype( clientPrincipal );
+        EncTicketPart encTicketPart = getTicketArchetype( clientPrincipal );
 
         // Make changes to test.
-        encTicketPartModifier.setFlag( TicketFlag.FORWARDABLE );
+        encTicketPart.setFlag( TicketFlag.FORWARDABLE );
 
         // Seal the ticket for the server.
         KerberosPrincipal serverPrincipal = new KerberosPrincipal( "krbtgt/EXAMPLE.COM@EXAMPLE.COM" );
         String passPhrase = "randomKey";
         EncryptionKey serverKey = getEncryptionKey( serverPrincipal, passPhrase );
-        Ticket tgt = getTicket( encTicketPartModifier, serverPrincipal, serverKey );
+        Ticket tgt = getTicket( encTicketPart, serverPrincipal, serverKey );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
         KdcOptions kdcOptions = new KdcOptions();
         kdcOptions.set( KdcOptions.FORWARDED );
-        modifier.setKdcOptions( kdcOptions );
+        kdcReqBody.setKdcOptions( kdcOptions );
 
         long now = System.currentTimeMillis();
 
         KerberosTime requestedEndTime = new KerberosTime( now + 1 * KerberosTime.DAY );
-        modifier.setTill( requestedEndTime );
+        kdcReqBody.setTill( requestedEndTime );
 
         HostAddress[] address =
             { new HostAddress( InetAddress.getByName( null ) ) };
         HostAddresses addresses = new HostAddresses( address );
-        modifier.setAddresses( addresses );
+        kdcReqBody.setAddresses( addresses );
 
-        RequestBody requestBody = modifier.getRequestBody();
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", TicketGrantReply.class, msg.getClass() );
-        TicketGrantReply reply = ( TicketGrantReply ) msg;
+        assertEquals( "session.getMessage() instanceOf", TgsRep.class, msg.getClass() );
+        TgsRep reply = ( TgsRep ) msg;
 
         assertTrue( "FORWARDED flag", reply.getFlags().isForwarded() );
         assertFalse( "INVALID flag", reply.getFlags().isInvalid() );
@@ -667,40 +646,39 @@ public class TicketGrantingServiceTest e
     {
         // Get the mutable ticket part.
         KerberosPrincipal clientPrincipal = new KerberosPrincipal( "hnelson@EXAMPLE.COM" );
-        EncTicketPartModifier encTicketPartModifier = getTicketArchetype( clientPrincipal );
+        EncTicketPart encTicketPart = getTicketArchetype( clientPrincipal );
 
         // Make changes to test.
-        encTicketPartModifier.setEndTime( new KerberosTime( 0 ) );
+        encTicketPart.setEndTime( new KerberosTime( 0 ) );
 
         // Seal the ticket for the server.
         KerberosPrincipal serverPrincipal = new KerberosPrincipal( "krbtgt/EXAMPLE.COM@EXAMPLE.COM" );
         String passPhrase = "randomKey";
         EncryptionKey serverKey = getEncryptionKey( serverPrincipal, passPhrase );
-        Ticket tgt = getTicket( encTicketPartModifier, serverPrincipal, serverKey );
+        Ticket tgt = getTicket( encTicketPart, serverPrincipal, serverKey );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "hnelson" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "hnelson" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
         KdcOptions kdcOptions = new KdcOptions();
-        modifier.setKdcOptions( kdcOptions );
+        kdcReqBody.setKdcOptions( kdcOptions );
 
         long now = System.currentTimeMillis();
 
         KerberosTime requestedEndTime = new KerberosTime( now + KerberosTime.DAY );
-        modifier.setTill( requestedEndTime );
+        kdcReqBody.setTill( requestedEndTime );
 
-        RequestBody requestBody = modifier.getRequestBody();
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", ErrorMessage.class, msg.getClass() );
-        ErrorMessage error = ( ErrorMessage ) msg;
-        assertEquals( "Ticket expired", 32, error.getErrorCode() );
+        assertEquals( "session.getMessage() instanceOf", KrbError.class, msg.getClass() );
+        KrbError error = ( KrbError ) msg;
+        assertEquals( "Ticket expired", ErrorType.KRB_AP_ERR_TKT_EXPIRED, error.getErrorCode() );
     }
 
 
@@ -716,42 +694,41 @@ public class TicketGrantingServiceTest e
     {
         // Get the mutable ticket part.
         KerberosPrincipal clientPrincipal = new KerberosPrincipal( "hnelson@EXAMPLE.COM" );
-        EncTicketPartModifier encTicketPartModifier = getTicketArchetype( clientPrincipal );
+        EncTicketPart encTicketPart = getTicketArchetype( clientPrincipal );
 
         // Make changes to test.
-        encTicketPartModifier.setFlag( TicketFlag.RENEWABLE );
-        encTicketPartModifier.setRenewTill( new KerberosTime( 0 ) );
+        encTicketPart.setFlag( TicketFlag.RENEWABLE );
+        encTicketPart.setRenewTill( new KerberosTime( 0 ) );
 
         // Seal the ticket for the server.
         KerberosPrincipal serverPrincipal = new KerberosPrincipal( "ldap/ldap.example.com@EXAMPLE.COM" );
         String passPhrase = "randomKey";
         EncryptionKey serverKey = getEncryptionKey( serverPrincipal, passPhrase );
-        Ticket tgt = getTicket( encTicketPartModifier, serverPrincipal, serverKey );
+        Ticket tgt = getTicket( encTicketPart, serverPrincipal, serverKey );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
         KdcOptions kdcOptions = new KdcOptions();
         kdcOptions.set( KdcOptions.RENEW );
-        modifier.setKdcOptions( kdcOptions );
+        kdcReqBody.setKdcOptions( kdcOptions );
 
         long now = System.currentTimeMillis();
 
         KerberosTime requestedEndTime = new KerberosTime( now + KerberosTime.DAY );
-        modifier.setTill( requestedEndTime );
+        kdcReqBody.setTill( requestedEndTime );
 
-        RequestBody requestBody = modifier.getRequestBody();
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", ErrorMessage.class, msg.getClass() );
-        ErrorMessage error = ( ErrorMessage ) msg;
-        assertEquals( "Ticket expired", 32, error.getErrorCode() );
+        assertEquals( "session.getMessage() instanceOf", KrbError.class, msg.getClass() );
+        KrbError error = ( KrbError ) msg;
+        assertEquals( "Ticket expired", ErrorType.KRB_AP_ERR_TKT_EXPIRED, error.getErrorCode() );
     }
 
 
@@ -769,39 +746,38 @@ public class TicketGrantingServiceTest e
 
         // Get the mutable ticket part.
         KerberosPrincipal clientPrincipal = new KerberosPrincipal( "hnelson@EXAMPLE.COM" );
-        EncTicketPartModifier encTicketPartModifier = getTicketArchetype( clientPrincipal );
+        EncTicketPart encTicketPart = getTicketArchetype( clientPrincipal );
 
         // Make changes to test.
-        encTicketPartModifier.setFlag( TicketFlag.RENEWABLE );
-        encTicketPartModifier.setStartTime( new KerberosTime( now - KerberosTime.DAY / 2 ) );
-        encTicketPartModifier.setEndTime( new KerberosTime( now + KerberosTime.DAY / 2 ) );
+        encTicketPart.setFlag( TicketFlag.RENEWABLE );
+        encTicketPart.setStartTime( new KerberosTime( now - KerberosTime.DAY / 2 ) );
+        encTicketPart.setEndTime( new KerberosTime( now + KerberosTime.DAY / 2 ) );
 
         // Seal the ticket for the server.
         KerberosPrincipal serverPrincipal = new KerberosPrincipal( "ldap/ldap.example.com@EXAMPLE.COM" );
         String passPhrase = "randomKey";
         EncryptionKey serverKey = getEncryptionKey( serverPrincipal, passPhrase );
-        Ticket tgt = getTicket( encTicketPartModifier, serverPrincipal, serverKey );
+        Ticket tgt = getTicket( encTicketPart, serverPrincipal, serverKey );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
         KdcOptions kdcOptions = new KdcOptions();
-        modifier.setKdcOptions( kdcOptions );
+        kdcReqBody.setKdcOptions( kdcOptions );
 
         KerberosTime requestedEndTime = new KerberosTime( now + KerberosTime.DAY / 2 );
-        modifier.setTill( requestedEndTime );
+        kdcReqBody.setTill( requestedEndTime );
 
-        RequestBody requestBody = modifier.getRequestBody();
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", TicketGrantReply.class, msg.getClass() );
-        TicketGrantReply reply = ( TicketGrantReply ) msg;
+        assertEquals( "session.getMessage() instanceOf", TgsRep.class, msg.getClass() );
+        TgsRep reply = ( TgsRep ) msg;
 
         KerberosTime expectedEndTime = tgt.getEncTicketPart().getEndTime();
         boolean isClose = Math.abs( reply.getEndTime().getTime() - expectedEndTime.getTime() ) < 5000;
@@ -822,40 +798,39 @@ public class TicketGrantingServiceTest e
 
         // Get the mutable ticket part.
         KerberosPrincipal clientPrincipal = new KerberosPrincipal( "hnelson@EXAMPLE.COM" );
-        EncTicketPartModifier encTicketPartModifier = getTicketArchetype( clientPrincipal );
+        EncTicketPart encTicketPart = getTicketArchetype( clientPrincipal );
 
         // Make changes to test.
-        encTicketPartModifier.setFlag( TicketFlag.RENEWABLE );
-        encTicketPartModifier.setStartTime( new KerberosTime( now - KerberosTime.DAY / 2 ) );
-        encTicketPartModifier.setEndTime( new KerberosTime( now + KerberosTime.DAY / 2 ) );
+        encTicketPart.setFlag( TicketFlag.RENEWABLE );
+        encTicketPart.setStartTime( new KerberosTime( now - KerberosTime.DAY / 2 ) );
+        encTicketPart.setEndTime( new KerberosTime( now + KerberosTime.DAY / 2 ) );
 
         // Seal the ticket for the server.
         KerberosPrincipal serverPrincipal = new KerberosPrincipal( "ldap/ldap.example.com@EXAMPLE.COM" );
         String passPhrase = "randomKey";
         EncryptionKey serverKey = getEncryptionKey( serverPrincipal, passPhrase );
-        Ticket tgt = getTicket( encTicketPartModifier, serverPrincipal, serverKey );
+        Ticket tgt = getTicket( encTicketPart, serverPrincipal, serverKey );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
         KdcOptions kdcOptions = new KdcOptions();
         kdcOptions.set( KdcOptions.RENEW );
-        modifier.setKdcOptions( kdcOptions );
+        kdcReqBody.setKdcOptions( kdcOptions );
 
         KerberosTime requestedEndTime = new KerberosTime( now + KerberosTime.DAY / 2 );
-        modifier.setTill( requestedEndTime );
+        kdcReqBody.setTill( requestedEndTime );
 
-        RequestBody requestBody = modifier.getRequestBody();
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", TicketGrantReply.class, msg.getClass() );
-        TicketGrantReply reply = ( TicketGrantReply ) msg;
+        assertEquals( "session.getMessage() instanceOf", TgsRep.class, msg.getClass() );
+        TgsRep reply = ( TgsRep ) msg;
 
         KerberosTime expectedEndTime = new KerberosTime( now + KerberosTime.DAY );
         boolean isClose = Math.abs( reply.getEndTime().getTime() - expectedEndTime.getTime() ) < 5000;
@@ -875,30 +850,31 @@ public class TicketGrantingServiceTest e
     @Test
     public void testEncryptionTypeNoSupport() throws Exception
     {
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "krbtgt/EXAMPLE.COM@EXAMPLE.COM" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "krbtgt/EXAMPLE.COM@EXAMPLE.COM" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
 
         Set<EncryptionType> encryptionTypes = new HashSet<EncryptionType>();
         encryptionTypes.add( EncryptionType.DES3_CBC_MD5 );
 
-        modifier.setEType( encryptionTypes );
+        kdcReqBody.setEType( encryptionTypes );
 
-        modifier.setKdcOptions( new KdcOptions() );
+        kdcReqBody.setKdcOptions( new KdcOptions() );
 
         long now = System.currentTimeMillis();
 
         KerberosTime requestedEndTime = new KerberosTime( now + KerberosTime.DAY );
-        modifier.setTill( requestedEndTime );
+        kdcReqBody.setTill( requestedEndTime );
 
-        KdcRequest message = new KdcRequest( 5, KerberosMessageType.TGS_REQ, null, modifier.getRequestBody() );
+        KdcReq message = new TgsReq();
+        message.setKdcReqBody( kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", ErrorMessage.class, msg.getClass() );
-        ErrorMessage error = ( ErrorMessage ) session.getMessage();
-        assertEquals( "KDC has no support for encryption type", 14, error.getErrorCode() );
+        assertEquals( "session.getMessage() instanceOf", KrbError.class, msg.getClass() );
+        KrbError error = ( KrbError ) session.getMessage();
+        assertEquals( "KDC has no support for encryption type", ErrorType.KDC_ERR_ETYPE_NOSUPP, error.getErrorCode() );
     }
 
 
@@ -917,30 +893,28 @@ public class TicketGrantingServiceTest e
 
         Ticket tgt = getTgt( clientPrincipal, serverPrincipal, serverPassword );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "tquist" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "tquist" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
         KdcOptions kdcOptions = new KdcOptions();
-        modifier.setKdcOptions( kdcOptions );
+        kdcReqBody.setKdcOptions( kdcOptions );
 
         long currentTime = System.currentTimeMillis();
 
         KerberosTime requestedEndTime = new KerberosTime( currentTime + KerberosTime.DAY );
-        modifier.setTill( requestedEndTime );
+        kdcReqBody.setTill( requestedEndTime );
 
-        RequestBody requestBody = modifier.getRequestBody();
-
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", ErrorMessage.class, msg.getClass() );
-        ErrorMessage error = ( ErrorMessage ) session.getMessage();
-        assertEquals( "The client or server has a null key", 9, error.getErrorCode() );
+        assertEquals( "session.getMessage() instanceOf", KrbError.class, msg.getClass() );
+        KrbError error = ( KrbError ) session.getMessage();
+        assertEquals( "The client or server has a null key", ErrorType.KDC_ERR_NULL_KEY, error.getErrorCode() );
     }
 
 
@@ -961,7 +935,7 @@ public class TicketGrantingServiceTest e
     {
         // Get the mutable ticket part.
         KerberosPrincipal clientPrincipal = new KerberosPrincipal( "hnelson@EXAMPLE.COM" );
-        EncTicketPartModifier encTicketPartModifier = getTicketArchetype( clientPrincipal );
+        EncTicketPart encTicketPart = getTicketArchetype( clientPrincipal );
 
         // Make changes to test.
 
@@ -969,29 +943,28 @@ public class TicketGrantingServiceTest e
         KerberosPrincipal serverPrincipal = new KerberosPrincipal( "krbtgt/EXAMPLE.COM@EXAMPLE.COM" );
         String passPhrase = "randomKey";
         EncryptionKey serverKey = getEncryptionKey( serverPrincipal, passPhrase );
-        Ticket tgt = getTicket( encTicketPartModifier, serverPrincipal, serverKey );
+        Ticket tgt = getTicket( encTicketPart, serverPrincipal, serverKey );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
-        modifier.setKdcOptions( new KdcOptions() );
+        kdcReqBody.setKdcOptions( new KdcOptions() );
 
         long now = System.currentTimeMillis();
 
         KerberosTime requestedEndTime = new KerberosTime( now + KerberosTime.DAY );
-        modifier.setTill( requestedEndTime );
+        kdcReqBody.setTill( requestedEndTime );
 
-        RequestBody requestBody = modifier.getRequestBody();
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", TicketGrantReply.class, msg.getClass() );
-        TicketGrantReply reply = ( TicketGrantReply ) msg;
+        assertEquals( "session.getMessage() instanceOf", TgsRep.class, msg.getClass() );
+        TgsRep reply = ( TgsRep ) msg;
 
         KerberosTime expectedStartTime = new KerberosTime( now );
         boolean isClose = reply.getStartTime() == null
@@ -1017,7 +990,7 @@ public class TicketGrantingServiceTest e
     {
         // Get the mutable ticket part.
         KerberosPrincipal clientPrincipal = new KerberosPrincipal( "hnelson@EXAMPLE.COM" );
-        EncTicketPartModifier encTicketPartModifier = getTicketArchetype( clientPrincipal );
+        EncTicketPart encTicketPart = getTicketArchetype( clientPrincipal );
 
         // Make changes to test.
 
@@ -1025,32 +998,31 @@ public class TicketGrantingServiceTest e
         KerberosPrincipal serverPrincipal = new KerberosPrincipal( "krbtgt/EXAMPLE.COM@EXAMPLE.COM" );
         String passPhrase = "randomKey";
         EncryptionKey serverKey = getEncryptionKey( serverPrincipal, passPhrase );
-        Ticket tgt = getTicket( encTicketPartModifier, serverPrincipal, serverKey );
+        Ticket tgt = getTicket( encTicketPart, serverPrincipal, serverKey );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
-        modifier.setKdcOptions( new KdcOptions() );
+        kdcReqBody.setKdcOptions( new KdcOptions() );
 
         long now = System.currentTimeMillis();
 
         KerberosTime requestedStartTime = new KerberosTime( now + -1 * KerberosTime.DAY );
-        modifier.setFrom( requestedStartTime );
+        kdcReqBody.setFrom( requestedStartTime );
 
         KerberosTime requestedEndTime = new KerberosTime( now + KerberosTime.DAY );
-        modifier.setTill( requestedEndTime );
+        kdcReqBody.setTill( requestedEndTime );
 
-        RequestBody requestBody = modifier.getRequestBody();
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", TicketGrantReply.class, msg.getClass() );
-        TicketGrantReply reply = ( TicketGrantReply ) msg;
+        assertEquals( "session.getMessage() instanceOf", TgsRep.class, msg.getClass() );
+        TgsRep reply = ( TgsRep ) msg;
 
         KerberosTime expectedStartTime = new KerberosTime( now );
         boolean isClose = reply.getStartTime() == null
@@ -1076,7 +1048,7 @@ public class TicketGrantingServiceTest e
     {
         // Get the mutable ticket part.
         KerberosPrincipal clientPrincipal = new KerberosPrincipal( "hnelson@EXAMPLE.COM" );
-        EncTicketPartModifier encTicketPartModifier = getTicketArchetype( clientPrincipal );
+        EncTicketPart encTicketPart = getTicketArchetype( clientPrincipal );
 
         // Make changes to test.
 
@@ -1084,32 +1056,31 @@ public class TicketGrantingServiceTest e
         KerberosPrincipal serverPrincipal = new KerberosPrincipal( "krbtgt/EXAMPLE.COM@EXAMPLE.COM" );
         String passPhrase = "randomKey";
         EncryptionKey serverKey = getEncryptionKey( serverPrincipal, passPhrase );
-        Ticket tgt = getTicket( encTicketPartModifier, serverPrincipal, serverKey );
+        Ticket tgt = getTicket( encTicketPart, serverPrincipal, serverKey );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
-        modifier.setKdcOptions( new KdcOptions() );
+        kdcReqBody.setKdcOptions( new KdcOptions() );
 
         long now = System.currentTimeMillis();
 
         KerberosTime requestedStartTime = new KerberosTime( now );
-        modifier.setFrom( requestedStartTime );
+        kdcReqBody.setFrom( requestedStartTime );
 
         KerberosTime requestedEndTime = new KerberosTime( now + KerberosTime.DAY );
-        modifier.setTill( requestedEndTime );
+        kdcReqBody.setTill( requestedEndTime );
 
-        RequestBody requestBody = modifier.getRequestBody();
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", TicketGrantReply.class, msg.getClass() );
-        TicketGrantReply reply = ( TicketGrantReply ) msg;
+        assertEquals( "session.getMessage() instanceOf", TgsRep.class, msg.getClass() );
+        TgsRep reply = ( TgsRep ) msg;
 
         KerberosTime expectedStartTime = new KerberosTime( now );
         boolean isClose = reply.getStartTime() == null
@@ -1133,44 +1104,43 @@ public class TicketGrantingServiceTest e
     {
         // Get the mutable ticket part.
         KerberosPrincipal clientPrincipal = new KerberosPrincipal( "hnelson@EXAMPLE.COM" );
-        EncTicketPartModifier encTicketPartModifier = getTicketArchetype( clientPrincipal );
+        EncTicketPart encTicketPart = getTicketArchetype( clientPrincipal );
 
         // Make changes to test.
-        encTicketPartModifier.setFlag( TicketFlag.MAY_POSTDATE );
+        encTicketPart.setFlag( TicketFlag.MAY_POSTDATE );
 
         // Seal the ticket for the server.
         KerberosPrincipal serverPrincipal = new KerberosPrincipal( "krbtgt/EXAMPLE.COM@EXAMPLE.COM" );
         String passPhrase = "randomKey";
         EncryptionKey serverKey = getEncryptionKey( serverPrincipal, passPhrase );
-        Ticket tgt = getTicket( encTicketPartModifier, serverPrincipal, serverKey );
+        Ticket tgt = getTicket( encTicketPart, serverPrincipal, serverKey );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
         KdcOptions kdcOptions = new KdcOptions();
         kdcOptions.set( KdcOptions.POSTDATED );
-        modifier.setKdcOptions( kdcOptions );
+        kdcReqBody.setKdcOptions( kdcOptions );
 
         long now = System.currentTimeMillis();
 
         KerberosTime requestedStartTime = new KerberosTime( now + KerberosTime.DAY );
-        modifier.setFrom( requestedStartTime );
+        kdcReqBody.setFrom( requestedStartTime );
 
         KerberosTime requestedEndTime = new KerberosTime( now );
-        modifier.setTill( requestedEndTime );
+        kdcReqBody.setTill( requestedEndTime );
 
-        RequestBody requestBody = modifier.getRequestBody();
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", ErrorMessage.class, msg.getClass() );
-        ErrorMessage error = ( ErrorMessage ) session.getMessage();
-        assertEquals( "Requested start time is later than end time", 11, error.getErrorCode() );
+        assertEquals( "session.getMessage() instanceOf", KrbError.class, msg.getClass() );
+        KrbError error = ( KrbError ) session.getMessage();
+        assertEquals( "Requested start time is later than end time", ErrorType.KDC_ERR_NEVER_VALID, error.getErrorCode() );
     }
 
 
@@ -1190,43 +1160,42 @@ public class TicketGrantingServiceTest e
     {
         // Get the mutable ticket part.
         KerberosPrincipal clientPrincipal = new KerberosPrincipal( "hnelson@EXAMPLE.COM" );
-        EncTicketPartModifier encTicketPartModifier = getTicketArchetype( clientPrincipal );
+        EncTicketPart encTicketPart = getTicketArchetype( clientPrincipal );
 
         // Make changes to test.
-        encTicketPartModifier.setFlag( TicketFlag.MAY_POSTDATE );
+        encTicketPart.setFlag( TicketFlag.MAY_POSTDATE );
 
         // Seal the ticket for the server.
         KerberosPrincipal serverPrincipal = new KerberosPrincipal( "krbtgt/EXAMPLE.COM@EXAMPLE.COM" );
         String passPhrase = "randomKey";
         EncryptionKey serverKey = getEncryptionKey( serverPrincipal, passPhrase );
-        Ticket tgt = getTicket( encTicketPartModifier, serverPrincipal, serverKey );
+        Ticket tgt = getTicket( encTicketPart, serverPrincipal, serverKey );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
         KdcOptions kdcOptions = new KdcOptions();
-        modifier.setKdcOptions( kdcOptions );
+        kdcReqBody.setKdcOptions( kdcOptions );
 
         long now = System.currentTimeMillis();
 
         KerberosTime requestedStartTime = new KerberosTime( now );
-        modifier.setFrom( requestedStartTime );
+        kdcReqBody.setFrom( requestedStartTime );
 
         KerberosTime requestedEndTime = new KerberosTime( now + 4 * KerberosTime.MINUTE );
-        modifier.setTill( requestedEndTime );
+        kdcReqBody.setTill( requestedEndTime );
 
-        RequestBody requestBody = modifier.getRequestBody();
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", ErrorMessage.class, msg.getClass() );
-        ErrorMessage error = ( ErrorMessage ) session.getMessage();
-        assertEquals( "Requested start time is later than end time", 11, error.getErrorCode() );
+        assertEquals( "session.getMessage() instanceOf", KrbError.class, msg.getClass() );
+        KrbError error = ( KrbError ) session.getMessage();
+        assertEquals( "Requested start time is later than end time", ErrorType.KDC_ERR_NEVER_VALID, error.getErrorCode() );
     }
 
 
@@ -1245,42 +1214,41 @@ public class TicketGrantingServiceTest e
     {
         // Get the mutable ticket part.
         KerberosPrincipal clientPrincipal = new KerberosPrincipal( "hnelson@EXAMPLE.COM" );
-        EncTicketPartModifier encTicketPartModifier = getTicketArchetype( clientPrincipal );
+        EncTicketPart encTicketPart = getTicketArchetype( clientPrincipal );
 
         // Make changes to test.
-        encTicketPartModifier.setFlag( TicketFlag.MAY_POSTDATE );
+        encTicketPart.setFlag( TicketFlag.MAY_POSTDATE );
 
         // Seal the ticket for the server.
         KerberosPrincipal serverPrincipal = new KerberosPrincipal( "krbtgt/EXAMPLE.COM@EXAMPLE.COM" );
         String passPhrase = "randomKey";
         EncryptionKey serverKey = getEncryptionKey( serverPrincipal, passPhrase );
-        Ticket tgt = getTicket( encTicketPartModifier, serverPrincipal, serverKey );
+        Ticket tgt = getTicket( encTicketPart, serverPrincipal, serverKey );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
-        modifier.setKdcOptions( new KdcOptions() );
+        kdcReqBody.setKdcOptions( new KdcOptions() );
 
         long now = System.currentTimeMillis();
 
         KerberosTime requestedStartTime = new KerberosTime( now + 10 * KerberosTime.MINUTE );
-        modifier.setFrom( requestedStartTime );
+        kdcReqBody.setFrom( requestedStartTime );
 
         KerberosTime requestedEndTime = new KerberosTime( now + KerberosTime.DAY );
-        modifier.setTill( requestedEndTime );
+        kdcReqBody.setTill( requestedEndTime );
 
-        RequestBody requestBody = modifier.getRequestBody();
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", ErrorMessage.class, msg.getClass() );
-        ErrorMessage error = ( ErrorMessage ) session.getMessage();
-        assertEquals( "Ticket not eligible for postdating", 10, error.getErrorCode() );
+        assertEquals( "session.getMessage() instanceOf", KrbError.class, msg.getClass() );
+        KrbError error = ( KrbError ) session.getMessage();
+        assertEquals( "Ticket not eligible for postdating", ErrorType.KDC_ERR_CANNOT_POSTDATE, error.getErrorCode() );
     }
 
 
@@ -1311,43 +1279,42 @@ public class TicketGrantingServiceTest e
 
         // Get the mutable ticket part.
         KerberosPrincipal clientPrincipal = new KerberosPrincipal( "hnelson@EXAMPLE.COM" );
-        EncTicketPartModifier encTicketPartModifier = getTicketArchetype( clientPrincipal );
+        EncTicketPart encTicketPart = getTicketArchetype( clientPrincipal );
 
         // Make changes to test.
-        encTicketPartModifier.setFlag( TicketFlag.MAY_POSTDATE );
+        encTicketPart.setFlag( TicketFlag.MAY_POSTDATE );
         // Service ticket end time will be limited by TGT end time.
-        encTicketPartModifier.setEndTime( new KerberosTime( now + 3 * KerberosTime.DAY ) );
+        encTicketPart.setEndTime( new KerberosTime( now + 3 * KerberosTime.DAY ) );
 
         // Seal the ticket for the server.
         KerberosPrincipal serverPrincipal = new KerberosPrincipal( "krbtgt/EXAMPLE.COM@EXAMPLE.COM" );
         String passPhrase = "randomKey";
         EncryptionKey serverKey = getEncryptionKey( serverPrincipal, passPhrase );
-        Ticket tgt = getTicket( encTicketPartModifier, serverPrincipal, serverKey );
+        Ticket tgt = getTicket( encTicketPart, serverPrincipal, serverKey );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "hnelson" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "hnelson" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
         KdcOptions kdcOptions = new KdcOptions();
         kdcOptions.set( KdcOptions.POSTDATED );
-        modifier.setKdcOptions( kdcOptions );
+        kdcReqBody.setKdcOptions( kdcOptions );
 
         KerberosTime requestedStartTime = new KerberosTime( now + KerberosTime.DAY );
-        modifier.setFrom( requestedStartTime );
+        kdcReqBody.setFrom( requestedStartTime );
 
         KerberosTime requestedEndTime = new KerberosTime( now + 2 * KerberosTime.DAY );
-        modifier.setTill( requestedEndTime );
+        kdcReqBody.setTill( requestedEndTime );
 
-        RequestBody requestBody = modifier.getRequestBody();
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", TicketGrantReply.class, msg.getClass() );
-        TicketGrantReply reply = ( TicketGrantReply ) msg;
+        assertEquals( "session.getMessage() instanceOf", TgsRep.class, msg.getClass() );
+        TgsRep reply = ( TgsRep ) msg;
 
         assertTrue( "Requested start time", requestedStartTime.equals( reply.getStartTime() ) );
         assertTrue( "Requested end time", requestedEndTime.equals( reply.getEndTime() ) );
@@ -1372,39 +1339,38 @@ public class TicketGrantingServiceTest e
     {
         // Get the mutable ticket part.
         KerberosPrincipal clientPrincipal = new KerberosPrincipal( "hnelson@EXAMPLE.COM" );
-        EncTicketPartModifier encTicketPartModifier = getTicketArchetype( clientPrincipal );
+        EncTicketPart encTicketPart = getTicketArchetype( clientPrincipal );
 
         // Make changes to test.
-        encTicketPartModifier.setFlag( TicketFlag.PRE_AUTHENT );
+        encTicketPart.setFlag( TicketFlag.PRE_AUTHENT );
 
         // Seal the ticket for the server.
         KerberosPrincipal serverPrincipal = new KerberosPrincipal( "krbtgt/EXAMPLE.COM@EXAMPLE.COM" );
         String passPhrase = "randomKey";
         EncryptionKey serverKey = getEncryptionKey( serverPrincipal, passPhrase );
-        Ticket tgt = getTicket( encTicketPartModifier, serverPrincipal, serverKey );
+        Ticket tgt = getTicket( encTicketPart, serverPrincipal, serverKey );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "hnelson" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "hnelson" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
         KdcOptions kdcOptions = new KdcOptions();
-        modifier.setKdcOptions( kdcOptions );
+        kdcReqBody.setKdcOptions( kdcOptions );
 
         long now = System.currentTimeMillis();
 
         KerberosTime requestedEndTime = new KerberosTime( now + KerberosTime.DAY );
-        modifier.setTill( requestedEndTime );
+        kdcReqBody.setTill( requestedEndTime );
 
-        RequestBody requestBody = modifier.getRequestBody();
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", TicketGrantReply.class, msg.getClass() );
-        TicketGrantReply reply = ( TicketGrantReply ) msg;
+        assertEquals( "session.getMessage() instanceOf", TgsRep.class, msg.getClass() );
+        TgsRep reply = ( TgsRep ) msg;
 
         assertTrue( "PRE_AUTHENT flag", reply.getTicket().getEncTicketPart().getFlags().isPreAuth() );
     }
@@ -1425,7 +1391,7 @@ public class TicketGrantingServiceTest e
     {
         // Get the mutable ticket part.
         KerberosPrincipal clientPrincipal = new KerberosPrincipal( "hnelson@EXAMPLE.COM" );
-        EncTicketPartModifier encTicketPartModifier = getTicketArchetype( clientPrincipal );
+        EncTicketPart encTicketPart = getTicketArchetype( clientPrincipal );
 
         // Make changes to test.
 
@@ -1433,30 +1399,29 @@ public class TicketGrantingServiceTest e
         KerberosPrincipal serverPrincipal = new KerberosPrincipal( "krbtgt/EXAMPLE.COM@EXAMPLE.COM" );
         String passPhrase = "randomKey";
         EncryptionKey serverKey = getEncryptionKey( serverPrincipal, passPhrase );
-        Ticket tgt = getTicket( encTicketPartModifier, serverPrincipal, serverKey );
+        Ticket tgt = getTicket( encTicketPart, serverPrincipal, serverKey );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "hnelson" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "hnelson" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
         KdcOptions kdcOptions = new KdcOptions();
-        modifier.setKdcOptions( kdcOptions );
+        kdcReqBody.setKdcOptions( kdcOptions );
 
         long now = System.currentTimeMillis();
 
         KerberosTime requestedEndTime = new KerberosTime( now + KerberosTime.DAY / 2 );
-        modifier.setTill( requestedEndTime );
+        kdcReqBody.setTill( requestedEndTime );
 
-        RequestBody requestBody = modifier.getRequestBody();
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", TicketGrantReply.class, msg.getClass() );
-        TicketGrantReply reply = ( TicketGrantReply ) msg;
+        assertEquals( "session.getMessage() instanceOf", TgsRep.class, msg.getClass() );
+        TgsRep reply = ( TgsRep ) msg;
 
         assertTrue( "Requested end time", requestedEndTime.equals( reply.getEndTime() ) );
     }
@@ -1478,7 +1443,7 @@ public class TicketGrantingServiceTest e
     {
         // Get the mutable ticket part.
         KerberosPrincipal clientPrincipal = new KerberosPrincipal( "hnelson@EXAMPLE.COM" );
-        EncTicketPartModifier encTicketPartModifier = getTicketArchetype( clientPrincipal );
+        EncTicketPart encTicketPart = getTicketArchetype( clientPrincipal );
 
         // Make changes to test.
 
@@ -1486,30 +1451,29 @@ public class TicketGrantingServiceTest e
         KerberosPrincipal serverPrincipal = new KerberosPrincipal( "krbtgt/EXAMPLE.COM@EXAMPLE.COM" );
         String passPhrase = "randomKey";
         EncryptionKey serverKey = getEncryptionKey( serverPrincipal, passPhrase );
-        Ticket tgt = getTicket( encTicketPartModifier, serverPrincipal, serverKey );
+        Ticket tgt = getTicket( encTicketPart, serverPrincipal, serverKey );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "hnelson" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "hnelson" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
         KdcOptions kdcOptions = new KdcOptions();
-        modifier.setKdcOptions( kdcOptions );
+        kdcReqBody.setKdcOptions( kdcOptions );
 
         long now = System.currentTimeMillis();
 
         KerberosTime requestedEndTime = new KerberosTime( now + KerberosTime.WEEK );
-        modifier.setTill( requestedEndTime );
+        kdcReqBody.setTill( requestedEndTime );
 
-        RequestBody requestBody = modifier.getRequestBody();
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", TicketGrantReply.class, msg.getClass() );
-        TicketGrantReply reply = ( TicketGrantReply ) msg;
+        assertEquals( "session.getMessage() instanceOf", TgsRep.class, msg.getClass() );
+        TgsRep reply = ( TgsRep ) msg;
 
         KerberosTime expectedEndTime = new KerberosTime( now + KerberosTime.DAY );
         boolean isClose = Math.abs( reply.getEndTime().getTime() - expectedEndTime.getTime() ) < 5000;
@@ -1529,7 +1493,7 @@ public class TicketGrantingServiceTest e
     {
         // Get the mutable ticket part.
         KerberosPrincipal clientPrincipal = new KerberosPrincipal( "hnelson@EXAMPLE.COM" );
-        EncTicketPartModifier encTicketPartModifier = getTicketArchetype( clientPrincipal );
+        EncTicketPart encTicketPart = getTicketArchetype( clientPrincipal );
 
         // Make changes to test.
 
@@ -1537,29 +1501,27 @@ public class TicketGrantingServiceTest e
         KerberosPrincipal serverPrincipal = new KerberosPrincipal( "krbtgt/EXAMPLE.COM@EXAMPLE.COM" );
         String passPhrase = "randomKey";
         EncryptionKey serverKey = getEncryptionKey( serverPrincipal, passPhrase );
-        Ticket tgt = getTicket( encTicketPartModifier, serverPrincipal, serverKey );
+        Ticket tgt = getTicket( encTicketPart, serverPrincipal, serverKey );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "hnelson" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "hnelson" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
-        modifier.setKdcOptions( new KdcOptions() );
+        kdcReqBody.setKdcOptions( new KdcOptions() );
 
         String epoch = "19700101000000Z";
         KerberosTime requestedEndTime = KerberosTime.getTime( epoch );
-        modifier.setTill( requestedEndTime );
-
-        RequestBody requestBody = modifier.getRequestBody();
+        kdcReqBody.setTill( requestedEndTime );
 
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", TicketGrantReply.class, msg.getClass() );
-        TicketGrantReply reply = ( TicketGrantReply ) msg;
+        assertEquals( "session.getMessage() instanceOf", TgsRep.class, msg.getClass() );
+        TgsRep reply = ( TgsRep ) msg;
 
         long now = System.currentTimeMillis();
         KerberosTime expectedEndTime = new KerberosTime( now + KerberosTime.DAY );
@@ -1586,40 +1548,39 @@ public class TicketGrantingServiceTest e
     {
         // Get the mutable ticket part.
         KerberosPrincipal clientPrincipal = new KerberosPrincipal( "hnelson@EXAMPLE.COM" );
-        EncTicketPartModifier encTicketPartModifier = getTicketArchetype( clientPrincipal );
+        EncTicketPart encTicketPart = getTicketArchetype( clientPrincipal );
 
         // Make changes to test.
-        encTicketPartModifier.setFlag( TicketFlag.RENEWABLE );
+        encTicketPart.setFlag( TicketFlag.RENEWABLE );
 
         // Seal the ticket for the server.
         KerberosPrincipal serverPrincipal = new KerberosPrincipal( "krbtgt/EXAMPLE.COM@EXAMPLE.COM" );
         String passPhrase = "randomKey";
         EncryptionKey serverKey = getEncryptionKey( serverPrincipal, passPhrase );
-        Ticket tgt = getTicket( encTicketPartModifier, serverPrincipal, serverKey );
+        Ticket tgt = getTicket( encTicketPart, serverPrincipal, serverKey );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
         KdcOptions kdcOptions = new KdcOptions();
         kdcOptions.set( KdcOptions.RENEWABLE_OK );
-        modifier.setKdcOptions( kdcOptions );
+        kdcReqBody.setKdcOptions( kdcOptions );
 
         long now = System.currentTimeMillis();
 
         KerberosTime requestedEndTime = new KerberosTime( now + KerberosTime.WEEK );
-        modifier.setTill( requestedEndTime );
+        kdcReqBody.setTill( requestedEndTime );
 
-        RequestBody requestBody = modifier.getRequestBody();
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", TicketGrantReply.class, msg.getClass() );
-        TicketGrantReply reply = ( TicketGrantReply ) msg;
+        assertEquals( "session.getMessage() instanceOf", TgsRep.class, msg.getClass() );
+        TgsRep reply = ( TgsRep ) msg;
 
         KerberosTime expectedEndTime = new KerberosTime( now + KerberosTime.DAY );
         boolean isClose = Math.abs( reply.getEndTime().getTime() - expectedEndTime.getTime() ) < 5000;
@@ -1648,40 +1609,39 @@ public class TicketGrantingServiceTest e
     {
         // Get the mutable ticket part.
         KerberosPrincipal clientPrincipal = new KerberosPrincipal( "hnelson@EXAMPLE.COM" );
-        EncTicketPartModifier encTicketPartModifier = getTicketArchetype( clientPrincipal );
+        EncTicketPart encTicketPart = getTicketArchetype( clientPrincipal );
 
         // Make changes to test.
-        encTicketPartModifier.setFlag( TicketFlag.FORWARDABLE );
+        encTicketPart.setFlag( TicketFlag.FORWARDABLE );
 
         // Seal the ticket for the server.
         KerberosPrincipal serverPrincipal = new KerberosPrincipal( "krbtgt/EXAMPLE.COM@EXAMPLE.COM" );
         String passPhrase = "randomKey";
         EncryptionKey serverKey = getEncryptionKey( serverPrincipal, passPhrase );
-        Ticket tgt = getTicket( encTicketPartModifier, serverPrincipal, serverKey );
+        Ticket tgt = getTicket( encTicketPart, serverPrincipal, serverKey );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
         KdcOptions kdcOptions = new KdcOptions();
         kdcOptions.set( KdcOptions.FORWARDABLE );
-        modifier.setKdcOptions( kdcOptions );
+        kdcReqBody.setKdcOptions( kdcOptions );
 
         long now = System.currentTimeMillis();
 
         KerberosTime requestedEndTime = new KerberosTime( now + 1 * KerberosTime.DAY );
-        modifier.setTill( requestedEndTime );
+        kdcReqBody.setTill( requestedEndTime );
 
-        RequestBody requestBody = modifier.getRequestBody();
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", TicketGrantReply.class, msg.getClass() );
-        TicketGrantReply reply = ( TicketGrantReply ) msg;
+        assertEquals( "session.getMessage() instanceOf", TgsRep.class, msg.getClass() );
+        TgsRep reply = ( TgsRep ) msg;
 
         assertTrue( "FORWARDABLE flag", reply.getFlags().isForwardable() );
         assertFalse( "INVALID flag", reply.getFlags().isInvalid() );
@@ -1705,40 +1665,39 @@ public class TicketGrantingServiceTest e
     {
         // Get the mutable ticket part.
         KerberosPrincipal clientPrincipal = new KerberosPrincipal( "hnelson@EXAMPLE.COM" );
-        EncTicketPartModifier encTicketPartModifier = getTicketArchetype( clientPrincipal );
+        EncTicketPart encTicketPart = getTicketArchetype( clientPrincipal );
 
         // Make changes to test.
-        encTicketPartModifier.setFlag( TicketFlag.MAY_POSTDATE );
+        encTicketPart.setFlag( TicketFlag.MAY_POSTDATE );
 
         // Seal the ticket for the server.
         KerberosPrincipal serverPrincipal = new KerberosPrincipal( "krbtgt/EXAMPLE.COM@EXAMPLE.COM" );
         String passPhrase = "randomKey";
         EncryptionKey serverKey = getEncryptionKey( serverPrincipal, passPhrase );
-        Ticket tgt = getTicket( encTicketPartModifier, serverPrincipal, serverKey );
+        Ticket tgt = getTicket( encTicketPart, serverPrincipal, serverKey );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
         KdcOptions kdcOptions = new KdcOptions();
         kdcOptions.set( KdcOptions.ALLOW_POSTDATE );
-        modifier.setKdcOptions( kdcOptions );
+        kdcReqBody.setKdcOptions( kdcOptions );
 
         long now = System.currentTimeMillis();
 
         KerberosTime requestedEndTime = new KerberosTime( now + 1 * KerberosTime.DAY );
-        modifier.setTill( requestedEndTime );
+        kdcReqBody.setTill( requestedEndTime );
 
-        RequestBody requestBody = modifier.getRequestBody();
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", TicketGrantReply.class, msg.getClass() );
-        TicketGrantReply reply = ( TicketGrantReply ) msg;
+        assertEquals( "session.getMessage() instanceOf", TgsRep.class, msg.getClass() );
+        TgsRep reply = ( TgsRep ) msg;
 
         assertTrue( "MAY_POSTDATE flag", reply.getFlags().isMayPosdate() );
         assertFalse( "INVALID flag", reply.getFlags().isInvalid() );
@@ -1762,40 +1721,39 @@ public class TicketGrantingServiceTest e
     {
         // Get the mutable ticket part.
         KerberosPrincipal clientPrincipal = new KerberosPrincipal( "hnelson@EXAMPLE.COM" );
-        EncTicketPartModifier encTicketPartModifier = getTicketArchetype( clientPrincipal );
+        EncTicketPart encTicketPart = getTicketArchetype( clientPrincipal );
 
         // Make changes to test.
-        encTicketPartModifier.setFlag( TicketFlag.PROXIABLE );
+        encTicketPart.setFlag( TicketFlag.PROXIABLE );
 
         // Seal the ticket for the server.
         KerberosPrincipal serverPrincipal = new KerberosPrincipal( "krbtgt/EXAMPLE.COM@EXAMPLE.COM" );
         String passPhrase = "randomKey";
         EncryptionKey serverKey = getEncryptionKey( serverPrincipal, passPhrase );
-        Ticket tgt = getTicket( encTicketPartModifier, serverPrincipal, serverKey );
+        Ticket tgt = getTicket( encTicketPart, serverPrincipal, serverKey );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
         KdcOptions kdcOptions = new KdcOptions();
         kdcOptions.set( KdcOptions.PROXIABLE );
-        modifier.setKdcOptions( kdcOptions );
+        kdcReqBody.setKdcOptions( kdcOptions );
 
         long now = System.currentTimeMillis();
 
         KerberosTime requestedEndTime = new KerberosTime( now + 1 * KerberosTime.DAY );
-        modifier.setTill( requestedEndTime );
+        kdcReqBody.setTill( requestedEndTime );
 
-        RequestBody requestBody = modifier.getRequestBody();
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", TicketGrantReply.class, msg.getClass() );
-        TicketGrantReply reply = ( TicketGrantReply ) msg;
+        assertEquals( "session.getMessage() instanceOf", TgsRep.class, msg.getClass() );
+        TgsRep reply = ( TgsRep ) msg;
 
         assertTrue( "PROXIABLE flag", reply.getFlags().isProxiable() );
         assertFalse( "INVALID flag", reply.getFlags().isInvalid() );
@@ -1822,43 +1780,42 @@ public class TicketGrantingServiceTest e
     {
         // Get the mutable ticket part.
         KerberosPrincipal clientPrincipal = new KerberosPrincipal( "hnelson@EXAMPLE.COM" );
-        EncTicketPartModifier encTicketPartModifier = getTicketArchetype( clientPrincipal );
+        EncTicketPart encTicketPart = getTicketArchetype( clientPrincipal );
 
         // Make changes to test.
-        encTicketPartModifier.setFlag( TicketFlag.RENEWABLE );
+        encTicketPart.setFlag( TicketFlag.RENEWABLE );
 
         // Seal the ticket for the server.
         KerberosPrincipal serverPrincipal = new KerberosPrincipal( "krbtgt/EXAMPLE.COM@EXAMPLE.COM" );
         String passPhrase = "randomKey";
         EncryptionKey serverKey = getEncryptionKey( serverPrincipal, passPhrase );
-        Ticket tgt = getTicket( encTicketPartModifier, serverPrincipal, serverKey );
+        Ticket tgt = getTicket( encTicketPart, serverPrincipal, serverKey );
 
-        RequestBodyModifier modifier = new RequestBodyModifier();
-        modifier.setServerName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
-        modifier.setRealm( "EXAMPLE.COM" );
-        modifier.setEType( config.getEncryptionTypes() );
-        modifier.setNonce( random.nextInt() );
+        KdcReqBody kdcReqBody = new KdcReqBody();
+        kdcReqBody.setSName( getPrincipalName( "ldap/ldap.example.com@EXAMPLE.COM" ) );
+        kdcReqBody.setRealm( "EXAMPLE.COM" );
+        kdcReqBody.setEType( config.getEncryptionTypes() );
+        kdcReqBody.setNonce( random.nextInt() );
 
         KdcOptions kdcOptions = new KdcOptions();
         kdcOptions.set( KdcOptions.RENEWABLE );
-        modifier.setKdcOptions( kdcOptions );
+        kdcReqBody.setKdcOptions( kdcOptions );
 
         long now = System.currentTimeMillis();
 
         KerberosTime requestedEndTime = new KerberosTime( now + 1 * KerberosTime.DAY );
-        modifier.setTill( requestedEndTime );
+        kdcReqBody.setTill( requestedEndTime );
 
         KerberosTime requestedRenewTillTime = new KerberosTime( now + KerberosTime.WEEK / 2 );
-        modifier.setRtime( requestedRenewTillTime );
+        kdcReqBody.setRtime( requestedRenewTillTime );
 
-        RequestBody requestBody = modifier.getRequestBody();
-        KdcRequest message = getKdcRequest( tgt, requestBody );
+        KdcReq message = getKdcRequest( tgt, kdcReqBody );
 
         handler.messageReceived( session, message );
 
         Object msg = session.getMessage();
-        assertEquals( "session.getMessage() instanceOf", TicketGrantReply.class, msg.getClass() );
-        TicketGrantReply reply = ( TicketGrantReply ) msg;
+        assertEquals( "session.getMessage() instanceOf", TgsRep.class, msg.getClass() );
+        TgsRep reply = ( TgsRep ) msg;
 
         assertTrue( "RENEWABLE flag", reply.getFlags().isRenewable() );
         assertFalse( "INVALID flag", reply.getFlags().isInvalid() );
@@ -1888,43 +1845,42 @@ public class TicketGrantingServiceTest e
     {
         // Get the mutable ticket part.
         KerberosPrincipal clientPrincipal = new KerberosPrincipal( "hnelson@EXAMPLE.COM" );
-        EncTicketPartModifier encTicketPartModifier = getTicketArchetype( clientPrincipal );
+        EncTicketPart encTicketPart = getTicketArchetype( clientPrincipal );
 
         // Make changes to test.
-        encTicketPartModifier.setFlag( TicketFlag.RENEWABLE );
+        encTicketPart.setFlag( TicketFlag.RENEWABLE );
 
         // Seal the ticket for the server.

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